Metal drain for roadways



G. K. MACK ET Al.

METAL DRAIN FOR ROADWAYS Filed OCL. 19. 1926 INVENTORS George K Mack. Willian d rr ATTORN EYS Patented Jan. 3, 1928.

UNITED STATES PATENT OFFICE.

GEORGE K. MAK .AND WILLIAMKJ. IBIERIR,YU[A1\`I', 0F EDENTON, NORTH CAROLINA..

METAL DnAIN non RoAnwAYs.

Application led October 19, 1926. Serial No. 142,695. i

ter draining off embankments, causing,-

costly and dangerous washouts.

The object of the present invention is to provi-de an eilicient and durable metal drain for a roadway, which drain'is easily made and laid, and which permits ready removal or replacement in part or ink whole if necessary. f

Our invention'is illustrated in the accompanying drawings, in which Figure l represents a perspective view of `the drain taken in the end thereof, v

Figure 2 is a sectional view taken on line f 2 2 of Figure l, looking in the direction of the arrows,

Figure 3 is a plan A,view taken line 3 3 of Figure 1, and

Figure 4 is a section taken on the line 4-4 ofv Figure 2, and shows how the drain is installed. i

Like parts are indicated by like reference characters throughout. the drawings. f Referring to the drawings, it will be seen that the drain'is composed of two sheets of metal, cut and bent to be fitted together as shown. The memberl, or so called apron, is made by cutting the sheet from the'. top in two places, the length of the cut being determined by t-he depth of the spout- 3. The flap 2 of the apron is then bent 90o and riveted to the bottom of the spout, as shown in Figure 3. Three ,spout fla s' 2 are bent and riveted to the apron as s own 1n Figure 1.

The top and sides of the apron and spout are double flanged, as at 4, that is, the edges are bent at 90 twice, in practice, about one and one-half inches 'being required for this Hanging, which serves as a protection against sharp edges and for extra strength. The Hanging of the apron and spout is done before theA two are attached.

` The drain is constructed of galvanized iron in flat sheets of sixteen gage, unless along the.

otherwise specified. TheA metal is conformed to standard specifications for galvanized copper bearing metal, which lied to meet the cost of production or other conditions. The rivets are preferably onequarter of an inch and galvanized. A reinforcing rod or strip, may be attached to the end of the spout, if necessary, for extra strength.

The- Width of the opening in the apron and spout is variable, being determined in practice by the amount of run olf of water.

may be modi- The length of the spout is also variable in practice, it` being equal to the height of the lilled roadway.

' As shown in- Figure 4, the metal drain which has an open top, is inserted through the berm or ridge usual along the edge of each shoulder of the roadway embankment, the drain being on a slight incline, outwardly and downwardly, with the floor thereof coinciding or flush with the surface of roadway, the drain being anchored by the apron 1 which is embedded in the shoulder of the roadway, it bei-ng'noted that the apron extends onboth lsides of the spout, holding it against slewing around from any cause. l

On installations made'on new construction jobs, it is advisable to build the berm of earth along the edge of each shoulder at the time the 'grading is done; this berm should be from eight to ten inches high and from one and a half to two feet in width at the bottom. Openings are then cut by hand at the low ing the drains, these openings being the width of the spout only; the drain is then placed in the opening so as to give a slope downwardlyand is then pushed into the berm and pressure applied to the apron to anchor it 1n the shoulder of the roadwayl and driven down untilthe floor of the spout proven very eicient in use This drain has w and will, it is believed, practically solve the problem of roadway Thus it will'be seen `that the present in-l eflcient roadway `survention 'provides an face drainage device, and one which the iniplaces in the grade. requir-` the anchor means including an upstanding apron having a recess to receive the front end of the spout and wings at each side of the spout and below the spout adapted` to be embedded in the shoulder of the road-y way. l

3. A roadway .drain as defined in claim l, the anchoring means including a depending apron and lateral wings at the front or entrance end of the spout.

GEORGE K. lli/LACK. WILLIAM J. BERRYMAN. 

